<!DOCTYPE html>
<html>

	<head>
		<meta charset="UTF-8">
		<title></title>
		<style type="text/css">
			body {
				margin: 0px;
				padding: 0px;
			}
			
			#container {
				clear: both;
				width: 800px;
				margin-left: auto;
				margin-right: auto;
			}
			
			#header {
				width: 100%;
				height: 80px;
				background-color: beige;
			}
			
			#center {
				width: 100%;
				height: 400px;
			}
			
			#footer {
				width: 100%;
				height: 80px;
				background-color: brown;
				clear: both;
			}
			
			#cLeft {
				width: 20%;
				height: 100%;
				float: left;
				background-color:cornflowerblue;
			}
			
			#cRight {
				width: 80%;
				height: 100%;
				float: left;
				background-color: hotpink;
			}
		</style>
	</head>

	<body>
		<div id="container">

			<div id="header"> head</div>
			<div id="center">
				<div id="cLeft"> Left</div>
				<div id="cRight"> right</div>
			</div>
			<div id="footer"> foot</div>			
		</div>
	</body>

</html>